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360°的圆柱形轴承在工作时,周向压力油膜在某一瞬间并不是分布在360°范围内,而是存在着部分无压油膜区。掌握和了解这个区域的范围及位置,可以合理确定轴承或轴颈上开设油孔或油槽的位置。 作用在轴承上的周向总油膜压力是由旋转油膜压力P_t和挤压油膜压力_P_r迭加而成的。P_t的
Cylindrical bearings 360 ° at work, the circumferential pressure of the oil film at a time is not distributed in the 360 ° range, but there is a part of the pressure-free oil zone. Grasp and understand the extent and location of this area so that the location of the hole or groove in the bearing or journal can be reasonably determined. The total circumferential film pressure acting on the bearing is formed by the superimposition of the rotational film pressure P_t and the squeeze film pressure _P_r. P_t’s